Compatible with: Dolphin Nautilus CC Plus, M4, M5, M400, M500, for Dolphin Triton Plus, for Dolphin Wave 65 pool cleaner. (Not suitable for Nautilus CC) for Nautilus CC Plus, Oasis Z5i, Aquarius XL, Odyssey, C3, C4, Sigma, M400, M500, M4, M5, Bio, Triton Plus (old), Liberty, Wave 65 and Wave 90. 32-R4 .991433-R4 Efficient Filtration: The high-efficiency robotic cleaning filter removes pool dirt and debris, such as leaves, dust and diatoms. It makes your pool spotless. Filters are designed to trap only larger debris and let fine debris through, to prevent cartridges from clogging as quickly when the pool is particularly dirty, as when the pool opens in the spring. < li>Premium Quality: ABS plastic frame is stronger and more durable. Firmly supports the filter layer and prevents it from breaking while working. Washable: Washable and reusable, these filters can last 2-3 years if used correctly. Rinse the filter every 4-6 weeks for best performance. MONEY BACK GUARANTEE: Not made or sold by Dolphin, but it has the same performance as the original. If you're not completely satisfied, you can request a replacement or refund. Features: *Top quality product. *Made of high quality materials, more durable *Exquisite and delicate, perfect match with equipment * High efficiency robotic cleaning filter that removes dirt and debris from the pool, such as leaves, dust and diatoms. It makes your pool spotless. * ABS plastic frame, more durable. At the same time, it can firmly support the filter layer and prevent it from breaking during operation. * Washable and reusable, these filters can last 2-3 years if used correctly. Rinse the filter every 4-6 weeks for best performance. * Compatible with: for Dolphin Nautilus CC Plus, M4, M5, M400, M500, for Dolphin Triton Plus, ForDolphin Wave 65. (Not suitable for Nautilus CC) for Nautilus CC Plus, ForOasis Z5i, ForAquarius XL, ForOdyssey, C3, C4 , ForSigma, M400, M500, M4, M5, ForBio, ForTriton Plus (old), ForLiberty, Forwave 65. and ForWave 90. *The same model as 9991432-R4.991433-R4. Content: 4 ultra-thin filters Note: Actual product color may vary slightly from that of the photo, due to many factors such as brightness of your monitor.